policy. the attack on the u.s. consulate we're joined by former u.s. diplomat nicholas burns who served in republican and democratic administrations, he's now with the kennedy school of government and harvard university. and danielle pletka, vice president for foreign and defense studies at the american enterprise institute. with you and start with benghazi. was there more light shed today. where do things stand in terms of understanding what happened and the response to it? >> well, jeffrey, i thought it was a commanding performance by secretary clinton. she was well informed. she was a master of the detail, and all the-- and she took responsibility, which was the right thing to do. she said that she will implement all the 29 recommendations of the accountability review board. now, i think the republicans there obviously had a right-- and i think they had an obligation to ask tough questions because this was a disaster for the american foreign service to lose four people in one day, includin